src/imagemanager.cpp:126: error: no match for ‘operator+’ in ‘std::basic_string<char, std::char_traits<char>, std::allocator<char> >(((const char*)"ImageManager: "), ((const std::allocator<char>&)((const std::allocator<char>*)(& std::allocator<char>())))) + setInfo.std::map<_Key, _Tp, _Compare, _Alloc>::operator[] [with _Key = std::basic_string<char, std::char_traits<char>, std::allocator<char> >, _Tp = int, _Compare = std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, _Alloc = std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int> >](((const std::basic_string<char, std::char_traits<char>, std::allocator<char> >&)(& setMapIt.std::_Rb_tree_iterator<_Tp>::operator-> [with _Tp = std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, VL::Sift*, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, VL::Sift*> > > >]()->std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, VL::Sift*, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, VL::Sift*> > > >::first)))’
/usr/lib/gcc/i686-pc-linux-gnu/4.2.3/../../../../include/c++/4.2.3/bits/stl_bvector.h:353: note: candidates are: std::_Bit_const_iterator std::operator+(ptrdiff_t, const std::_Bit_const_iterator&)
/usr/lib/gcc/i686-pc-linux-gnu/4.2.3/../../../../include/c++/4.2.3/bits/stl_bvector.h:267: note:                 std::_Bit_iterator std::operator+(ptrdiff_t, const std::_Bit_iterator&)